package com.zj.interceptor;

import com.zj.common.Msg;
import com.zj.entity.UserInfo;
import com.zj.exception.PermissionException;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class AdminInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        UserInfo userInfo = (UserInfo) request.getSession().getAttribute("userInfo");
        System.out.println(userInfo.getRole());
        if (userInfo.getRole().equals("admin")){
            return true;
        }else {
            throw new PermissionException(Msg.PERMISSION_DENIED);
//            Permission denied
        }

    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        HandlerInterceptor.super.postHandle(request, response, handler, modelAndView);
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        HandlerInterceptor.super.afterCompletion(request, response, handler, ex);
    }
}
